diff --git a/src/textdialog.cpp b/src/textdialog.cpp
index b67f33a..edb8d3d 100644
--- a/src/textdialog.cpp
+++ b/src/textdialog.cpp
@@ -139,7 +139,7 @@ void TextDialog::exec() {
 				if (firstRow + rowsPerPage*2 -1 < text->size()) {
 					firstRow += rowsPerPage-1;
 				} else {
-					firstRow = max(0u, text->size() - rowsPerPage);
+					firstRow = max(0lu, text->size() - rowsPerPage);
 				}
 				break;
 			case InputManager::SETTINGS:
diff --git a/src/textmanualdialog.cpp b/src/textmanualdialog.cpp
index e50b370..25324a6 100644
--- a/src/textmanualdialog.cpp
+++ b/src/textmanualdialog.cpp
@@ -133,7 +133,7 @@ void TextManualDialog::exec() {
 				break;
 			case InputManager::ALTRIGHT:
 				if (firstRow + rowsPerPage*2 -1 < pages[page].text.size()) firstRow += rowsPerPage-1;
-				else firstRow = max(0u, pages[page].text.size() - rowsPerPage);
+				else firstRow = max(0lu, pages[page].text.size() - rowsPerPage);
 				break;
 			case InputManager::CANCEL:
 			case InputManager::SETTINGS: